From the IMF blog, a great chart showing the rate at which motor vehicles took over from horses early in the 20th century. Putting current motor-vehicle and electric-car use on the same graph makes a pretty good visual case that we might be as little as 15 years from the cross-over point where half the vehicles on the road are electric.

Greater affordability of electric vehicles will likely steer us away from our current sources of energy for transportation, and toward more environmentally friendly technology. And that can happen sooner than you think.

On Oliver Sacks: his writing process, how he used notebooks, and his views on creativity. Via Field Notes.

Where making is driven by association and memory, birthing “needs ‘incubation’” and is marked by intuition. But before we hasten to assume that he valued the latter type of creative work more highly than the former, he lists Darwin as an example of a writer who makes and Rilke as one who births, which strongly suggests that he saw the two not as a hierarchy but as distinct, complementary forms of creative work — Darwin was, after all, one of Dr. Sacks’s great heroes.

Starting with sedentary mice aged about 65 in mouse-years, half were put on a program of high-intensity interval training:

the interval-trained mice seemed in many ways younger than they had been at the start. In particular, they were stronger; when pulled backward gently by researchers, they would cling to a bar longer than at the start of the study. They also had greater endurance capacity, as well as more muscle mass in their hind legs than the sedentary animals, and they scampered faster. Few now were frail.